SELECT proj_id
, event_code FROM events WHERE event_date.value >= 'Ol-MAR-98';
    -  -. Oracle    -, ORDER  MAP,        (     ,  ).  ORDER  MAP       ,    ,              .      :
SELECT proj_id
, event_code FROM evets WHERE event_date >= date_only('Ol-MAR-98');
:
  Oracle    CREATE OR REPLACE TYPE,   ,       ,         ,   .     ,      (..          ).   ,  ,     (, PATROL DB-Alter for Oracle  ),   ,       TYPE,         , ,     ,         .   ,    ,  ,         .

          ,    .          ,    -  -.           ,    .        ,       .      staff_assignment_o    - cost:
CREATE OR REPLACE TYPE staff_assignment_o AS OBJECT ( staff__id   NUMBER , start_on   DATE , end_on     DATE , recover at NUMBER
102	Oracle 8